Choke Unloader

Open throttle valves wide open. Apply light closing pressure to choke valve. See Fig 1.

Fig 1: Choke Unloader Adjustment
Courtesy of AMERICAN MOTORS/RENAULT CORP.
Measure specified choke unloader clearance between upper edge of choke valve and air horn wall.
To adjust, bend choke unloader tang. Make sure linkage is free and does not bind after making adjustment.

Fig 2: Exploded View of Carter Model BBD 2-Barrel Carburetor
Courtesy of AMERICAN MOTORS/RENAULT CORP.